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@einen tetra stentffise.

ARTHUR I. JUDGE, 0F BALTIMORE, MARYLAND.

Letters Patent No. 73,342, dated January 14, 1868.

IMPROVEMENT IN' EXPANDING WHEEL-HUB 'TO ALL WHOM IT MAY CONCERN:

Beit known that I, ARTHUR I. JUDGE, of Baltimore, in the county. of Baltimore, in the `State of Maryland, have invented a new and improved Expanding Wheel-Hub; and .I do hereby declare that the following is a full and exact description thereof, reference being hud to theuccompunying drawings, und letters of reference marked thereon. Y

` The nature of my invention consists in having n. movable inclined plane, upon which one end ot the spokes is to rest, said inclined plane or wedge being driven under the spokes by means of screws, which will expand the spokes rmly against the tire or outside rim of wheel, und prevent the necessity of cutting the tires.-

To enable others skilled in the art to make und use my invention, I will proceed to describe its construction and operation.

I construct my hubs of any suitable materiel or desirable form, plain or ornamental, providing only for a recess 0r chamber, in which the inclined plane B, `Figure, 1, is to more backwards or forwards under the spokes. The hub may be lnadevin parts, us shown at' iig. 1, or all cast together, as at Figure 2, with the ring cast loose in the chamber. Any number of screws or bolts` A, figs. l and 2, can be put in the ring or inclined plane B, fig. 1, but three will, perhaps, answer all required purposes. I i

If the screws on said bolts are cut left-handed, the wheel can be tightened by right-handed turns.

As my hub will be useful for all kinds of wagons, carriages, wheel-barrows, und cars, I claim it for all vehicles or purposes to which it muy be applied, including army-wagons, gun-carriages, dto.

One great advantage it o'ei's is, that :1 broken spoke cnn be replaced without the aid of :t blacksmith, as,

'by slaekening the screws, the tire is relieved ofspr'essure, and all the parts of the wheel can be removed or replaced. It is also suitable for iron Wheels, with tube or solid spokes, square or any form.

` What I claim ns my invention, and desireto secure by Letters Patent, is-

1. An adjustable base, with nn inclined face', Vnga-inst which the ends of the several spokes of a wheel bear, so arranged that the spokes muy be simultaneously more or less extended lthrougarh the hub,.by changing the position of the inclined base, substantially 'as and for the purpose set iforth.

2. In combination with :t cliamberefl hub, I claim the conical base B and adjusting-screws A, substantially as and for the purpose set forth.

ARTHUR I. JUDGE.

Witnesses:

SYLvns'rER CLARKE, VBRNJ. M. HUGHEY. 

